The method that analyzes the purity of toluene diisocyanate by capillary gas chromatograph was established.
建立了用毛细管气相色谱法测定甲苯二异氰酸酯纯度的方法。
A new test method, in which alkyne impurity content in 1, 3-butadiene is determined by a capillary gas chromatograph, was introduced.
介绍了一种毛细管气相色谱法测定1,3 -丁二烯中炔烃杂质含量的新试验方法。
Method The fatty oil from Carum carvi L was extracted by ligarine petrum and analyzed by capillary gas chromatograph mass spectrometer(GC-MS) method.
方法用石油醚提取脂肪油并甲酯化，采用毛细管气相色谱-质谱联用技术对其进行分析鉴定。
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